[INFO] cloning repository https://github.com/imoken1122/trie
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imoken1122/trie" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimoken1122%2Ftrie", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimoken1122%2Ftrie'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b55455aa718c73f5d902bd6869e5f4065d392cbd
[INFO] checking imoken1122/trie against master#85c39893a761fe4c050523278da4e7e45ab42b6e for pr-134688-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimoken1122%2Ftrie" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imoken1122/trie on toolchain 85c39893a761fe4c050523278da4e7e45ab42b6e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imoken1122/trie
[INFO] finished tweaking git repo https://github.com/imoken1122/trie
[INFO] tweaked toml for git repo https://github.com/imoken1122/trie written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imoken1122/trie already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c88fce7d7350ec8edab7f6515f14e57555544c1132eab11d5055f15bcbcb4243
[INFO] running `Command { std: "docker" "start" "-a" "c88fce7d7350ec8edab7f6515f14e57555544c1132eab11d5055f15bcbcb4243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c88fce7d7350ec8edab7f6515f14e57555544c1132eab11d5055f15bcbcb4243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c88fce7d7350ec8edab7f6515f14e57555544c1132eab11d5055f15bcbcb4243", kill_on_drop: false }`
[INFO] [stdout] c88fce7d7350ec8edab7f6515f14e57555544c1132eab11d5055f15bcbcb4243
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf7c2863d86b6ac564c1bd609adcc810e67aef43e7429daab4a7771d0b33f60b
[INFO] running `Command { std: "docker" "start" "-a" "bf7c2863d86b6ac564c1bd609adcc810e67aef43e7429daab4a7771d0b33f60b", kill_on_drop: false }`
[INFO] [stderr]     Checking trie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/array_trie.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error as Error`
[INFO] [stdout]  --> src/triple_array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Error as Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `next_elm_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type next_elm_t = i64;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `NextElmT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `offset_elm_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type offset_elm_t = i64;
[INFO] [stdout]   |      ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `OffsetElmT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `offset_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type offset_t = Option<offset_elm_t>;
[INFO] [stdout]   |      ^^^^^^^^ help: convert the identifier to upper camel case: `OffsetT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `next_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type next_t= Option<next_elm_t>;
[INFO] [stdout]   |      ^^^^^^ help: convert the identifier to upper camel case: `NextT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `check_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type check_t= Option<idx_t>;
[INFO] [stdout]   |      ^^^^^^^ help: convert the identifier to upper camel case: `CheckT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/triple_array.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array_trie::Trie`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array_trie::Trie;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `idx_t` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type idx_t= usize;
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `IdxT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Error as Error`
[INFO] [stdout]  --> src/triple_array.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Error as Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `next_elm_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type next_elm_t = i64;
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `NextElmT`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `offset_elm_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type offset_elm_t = i64;
[INFO] [stdout]   |      ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `OffsetElmT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `offset_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type offset_t = Option<offset_elm_t>;
[INFO] [stdout]   |      ^^^^^^^^ help: convert the identifier to upper camel case: `OffsetT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `next_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type next_t= Option<next_elm_t>;
[INFO] [stdout]   |      ^^^^^^ help: convert the identifier to upper camel case: `NextT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `check_t` should have an upper camel case name
[INFO] [stdout]  --> src/triple_array.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type check_t= Option<idx_t>;
[INFO] [stdout]   |      ^^^^^^^ help: convert the identifier to upper camel case: `CheckT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `array_trie::Trie`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use array_trie::Trie;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `idx_t` should have an upper camel case name
[INFO] [stdout]  --> src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type idx_t= usize;
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `IdxT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/array_trie.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |         for (i,c)  in word.chars().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/array_trie.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl TrieNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 25 |     pub fn new(item:Option<String>) -> TrieNode{
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `insert`, and `contain` are never used
[INFO] [stdout]   --> src/array_trie.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Trie{
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 44 |     pub fn new() -> Trie{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn add_node(&mut self, node : TrieNode) -> Option<usize>{
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn insert(&mut self,word : String) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     pub fn contain(&self, word : String) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/triple_array.rs:22:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl DoubleArray {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 22  |     pub fn new(trie:Trie, ) -> DoubleArray{
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39  |     pub fn build(&mut self){
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62  |     fn get_left_idx_next(&self,array:&Vec<Option<next_elm_t>>, ) ->idx_t{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70  |     fn get_left_node_idx(&self,array:&Vec<Option<idx_t>>, ) ->idx_t{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80  |     fn check_next(&self, offset : offset_elm_t,node_idx : usize) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99  |     fn get_offset(&mut self, node_idx : usize) -> offset_elm_t{
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn update_arrays(&mut self, offset : offset_elm_t, parent_idx: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     fn verify_next(&self, ans : &[i64]) -> bool{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/array_trie.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 |         for (i,c)  in word.chars().enumerate(){
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "bf7c2863d86b6ac564c1bd609adcc810e67aef43e7429daab4a7771d0b33f60b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf7c2863d86b6ac564c1bd609adcc810e67aef43e7429daab4a7771d0b33f60b", kill_on_drop: false }`
[INFO] [stdout] bf7c2863d86b6ac564c1bd609adcc810e67aef43e7429daab4a7771d0b33f60b